T型三电平逆变器非对称矢量脉冲宽度调制相电流重构策略

Yao Lei; Fu Hao; Ma Kefei; Jia Ximing; Huang Pengluan; Liu Jin

doi:10.19912/j.0254-0096.tynxb.2022-1856

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (4) : 450-467. DOI: 10.19912/j.0254-0096.tynxb.2022-1856

T型三电平逆变器非对称矢量脉冲宽度调制相电流重构策略

申永鹏¹, 刘洋¹, 王帅兵¹, 齐文雷², 王延峰¹

作者信息 +

PERFORMANCE STUDY OF DUST ADHESION OF PV MODULE SURFACES ON HIGHWAY SLOPE

Yao Lei^1,2, Fu Hao², Ma Kefei³, Jia Ximing³, Huang Pengluan³, Liu Jin²

Author information +

文章历史 +

摘要

针对T型三电平逆变器中点电流单传感器传统相电流重构方法存在不可观测区的问题,分析中点电流采样过程中不可观测区的存在机理,提出非对称矢量脉冲宽度调制相电流重构策略。通过移位PWM波延长基本电压矢量的作用时间,消除不可观测区,实现相电流重构。实验结果表明,所提方法的电流重构误差低于2.2%,输出相电流畸变率低于3.48%。

Abstract

The chemical components of dust on the surface of highway slope PV module are analyzed and study the main influencing factors and mechanism of dust adhesion under condensation conditions are studied. The results show that the dust on the surface of highway slope PV dust is influenced by the environment, which lead to a high content of organic and plant fibers. Combined effects of condensation and organic cause formation of flat film and hydrogen bonds between the dust and surface of PV module to increase adhesion strength. In contrast, the plant fibers reduce the adhesion strength on interfaces.

导出引用

申永鹏, 刘洋, 王帅兵, 齐文雷, 王延峰. T型三电平逆变器非对称矢量脉冲宽度调制相电流重构策略[J]. 太阳能学报. 2024, 45(4): 450-467 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1856

Yao Lei, Fu Hao, Ma Kefei, Jia Ximing, Huang Pengluan, Liu Jin. PERFORMANCE STUDY OF DUST ADHESION OF PV MODULE SURFACES ON HIGHWAY SLOPE[J]. Acta Energiae Solaris Sinica. 2024, 45(4): 450-467 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1856

中图分类号： TM341

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